Weather Resistant Low Temperature Resistant Customizable Industrial Plastic Silicone Sealant Cartridge. Premium HDPE Material: Made from 100% virgin High-Density Polyethylene for superior chemical resistance and structural integrity. 100% Airtight Seal: Precision-engineered plunger design prevents air and moisture penetration, extending shelf life. Burst-Resistant Design: Reinforced thick walls withstand high pressure during automated filling and manual application. Smooth Extrusion: Ultra-smooth inner wall minimizes friction for effortless extrusion of high-viscosity adhesives. Custom Branding Options: Available as blank tubes or with silk-screen, offset printing, and In-Mold Labeling services. Versatile Compatibility: Ideal for RTV silicone, acrylic caulks, polyurethane, and heavy-duty construction adhesives. OEM/ODM Support: Full customization services including design, samples, and minor adjustments available. Professional Manufacturer: Large-scale production base with over 120,000 metric tons annual capacity and 16 lines.